Heating Apparatus at Stratlifieldsaye. 



177 



arranged. Thus, by taking the beds, 2. 3. 6. 10. 14. 19. 20. 2-1.. 25. 29. .34. 

 and 38. of the first arrangement, and joining them to the second, the garden 

 would then be a rosary ; by which, with a proper selection of'successional kinds, 

 with the bulbs and other phmts used as edging to the beds, a regular supply 

 of flowers might be obtained. — J. P. 



( To he continued.') 



Art. IV. Notice of a heating Apparatus in the Gardens of His 

 Grace the Duke of Wellington at Strathfieldsaye. By John John- 

 son, Gardener there. 



The apparatus {Jig. 51.) consists of a stove (originally Dr. Ar- 

 nott's) and two copper cylinders. The stove contains two 

 copper boilers 1 ft. deep 



and 3 in. wide, which form 

 the fire-box of the stove, 

 out of which the boiling 

 Avater flows by the top 

 pipe into the cylinder, and 

 returns by the lower pipe 

 into the bottom of the 

 boiler. The cylinders have 

 each thirty tubes, 1 in. 

 in diameter, extending 

 through the whole length 

 (amongst which the water 

 flows), giving out an ex- 

 tent of heated surface ■^'^* ^^' ^^^"'^''"-S ^ppnratus at Strathjleldsaye. 



equal to the outside of the cylinder, and through which the air 

 circulates. The dimensions are, stove 1 ft. 6 In. square, and 

 3 ft. 9 in. in height, including the ornamental cap on the top, 

 which is 4 in. deep ; cylinders 1 ft. 6 in. in diameter, and the 

 same height as the stove, including the caps. 



It consumes exactly one bushel of coke per day, the half of 

 which is supplied every morning and evening. The water Is 

 supplied by a covered valve near the top of the cylinder, as 

 seen in the figure. There is a small -pipe for evaporation at the 

 back part of the cylinder. The ornamental cajDS are movable, 

 and conceal the tubes of the cylinders and the feed-hole of the 

 stove. The smoke escapes by a tube at the back of the stove, 

 communicating with a flue built in the wall. 



There are two of the above apparatvises in the conservatory 

 at this place, which is 67 ft. long, 27 ft. wide, and 21 ft. high, 

 and which for the last four years has been sufliclently heated to 

 preserve the plants from injury from cold or damp. 



Strathfieldsaye, Feb. 11. 1843. 



